KEY ELEMENTS: PHYSICAL SCIENCE : ATOMS, ELEMENTS AND COMPOUNDS

By the end of this grade, students will have demonstrated understanding of how the nature of the atom relates to chemistry and electricity.

Atoms, Elements, and Compounds (18-20 hours)

Vocabulary

alkali metal, alkaline earth metal, atom, atomic mass, atomic number, Bohr model, conductivity, covalent compounds, density, electron, element, halogens, ionic compounds, mass, melting/boiling point, molecule, multiple ion charge, metal, metalloid, neutron, noble gases, non-metal, polyatomic, proton, state, subatomic particles, volume

Knowledge
• properties and states of matter
• physical and chemical change
• subatomic particles, properties, and location
• Bohr model
• atomic theory
• the structure and components of atoms and molecules
• metals, non-metals, and metalloids
• periodic table
• chemical symbols for elements
• chemical formulae for simple ionic compounds

Skills and Attitudes
• create models of atoms and ions
• draw Bohr models
• use the periodic table and common ion chart
• write chemical formulae and symbols
• name chemical compounds